A recently published study shines new light on the potential link between lack of deep sleep and the development of Alzheimer’s disease.When it comes to the proper functioning of the brain’s waste removal system, which works to clear out toxic proteins, not all sleep is the same.Deep sleep appears to be a key component in helping reduce one’s chances of developing the disease, while lack of deep sleep may increase the risk.Past research has implicated deep sleep — and lack thereof — as a factor when it comes to the development of Alzheimer’s disease.At the heart of the matter are toxic proteins, including beta amyloid, which can accumulate in the brain.The accumulation of these proteins has been associated with Alzheimer’s disease, and disrupted sleep may be a contributing factor.
Philips has taken the wraps off a new wearable device called SmartSleep, a solution for individuals who have trouble falling asleep.According to the company, its SmartSleep is the first wearable of its kind, one that is also clinically proven as effective for its intended purpose.Key to the device’s effectiveness, Philips says, are advanced sleep analysis algorithms alongside “customized audio tones.”Philips SmartSleep is a headset, technically, but not the kind that goes in your ears.As shown in the image above, the device places a pair of sensors on the wearer’s head.The system works by monitoring the wearer’s brain activity and determining when slow wave sleep is decreasing.
You don’t need a scientist to tell you that a good night’s sleep is important to your health.Your body tells you that every time you try to climb out of bed after a late night.So to help maximise what sleep you are able to get, Philips has created a headband that plays special sounds designed to encourage your brain to remain in its most restful deep sleep state.Deep sleep is also commonly referred to as slow-wave sleep because while you’re dozing, the electrical activity in your brain slowly rises and falls as neurons take a moment of rest, followed by a moment of over-excited activity.Researchers believe that slow-wave sleep is when the brain is able to fully process and stores memories, but it’s also a time when the brain can finally take a breather and recover from the day’s mental activities.That’s why it’s so hard to focus the next morning after a short or disruptive night’s sleep.
p Fitness trackers didn't always monitor sleep, but the feature is now a sought-after staple in most devices, as sleep is just as important as exercise to a healthy lifestyle.Most wristbands monitor sleep now, and there are even specialized devices that go on your head or bedside table that can also keep track of how long and how well you sleep each night.Light sleep occurs soon after you fall asleep and your heart rate and body temperature go down.If you only have three or four hours of rest, you may not fit in enough sleep cycles for your body to fully repair itself from the day before.Aside from diagnosable sleep disorders, a number of things can wake you in the middle of the night, including too many alcoholic drinks before bed, not enough exercise throughout the day, and spending too much time on your phone or tablet before turning off the lights.Most such devices use accelerometers to track movement both when you're awake and when you're asleep.
A new study out of Northwestern Medicine has found that playing audio synced to one’s brainwaves both improves memory in the elderly and improves their deep sleep quality.The memory increase is likely due to the substantial improvements in deep sleep quality, which gets worse as a person gets older, but especially starting in middle age.The discovery could lead to non-medicine-based interventions to improve both memory and sleep quality in older adults and the elderly.The study, which was published yesterday in the journal Frontiers in Human Neuroscience, tested the effects of acoustic stimulation sessions on volunteers aged 60 years and older.The volunteers were given a memory test the night before the session and then another one in the morning.That resulted in a 4-percent increase.
Owing to some horrendously long flight times, scientists have speculated that certain birds are capable of sleep during flight.A remarkable new experiment by an international team of researchers has now proven this to be true, showing that birds can catch a snooze while hitching a ride on rising air currents.In a new paper published in Nature Communications, Niels Rattenborg from the Max Planck Institute and colleagues from several other institutions have offered the first proof showing that flying birds can sleep with either one half of their brains active, or with both hemispheres shut down at the same time.Remarkably, these birds can retain their navigational ability while in REM sleep, which involves temporary loss of muscle tone.Scientists are well aware that certain birds, such as swifts, songbirds, sandpipers, and seabirds, don t get nearly enough sleep.To help them stay aloft for days, weeks, or even months at a time, scientists have assumed that these long distance fliers have evolved the ability to sleep during flight by engaging in unihemispheric sleep, that is, leaving one brain hemisphere active while the other gets some rest.
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